package com.test;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class SessionServlet
 */
public class SessionServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public SessionServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		process2(request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

	private void process2(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		System.out.println("HttpServletRequest 的真实类型是："+request.getClass().getName());
		HttpSession session= request.getSession();
		session.getId();
		System.out.println("Session Id 是："+session.getId());
		ServletContext servletContext = this.getServletContext();
		System.out.println(response.getContentType());
		response.setContentType("text/html");
		response.setCharacterEncoding("utf-8");
		PrintWriter out=response.getWriter();
		
		out.print("Session 是否为新建  ： "+session.isNew());
		out.print("Session Id 是  ： "+session.getId());
		
		out.close();
	}
}
